Rarely used. Like new. Come with remote and speaker bags. From the website: dphone jack or pair with a USB DAC to achieve an even higher level of sound quality. The Audioengine 5+ works with any computer and there's no software to install or settings to change. Easy Setup Built-in power amplifiers save space and eliminate the need to connect Audioengine 5+ to a stereo receiver or external power amp. Simply plug the left speaker into an AC outlet and connect the included speaker wire from the left to right speaker. All internal components of the A5+ are tuned together, providing a more efficient system requiring less power than passive speakers and amplifiers. With superior stereo separation and incredible imaging, A5+ has a clear sonic advantage over boomboxes or all-in-one systems. Small Speakers, Big Bass You won't hear any enhanced super-mega-hyper-monster boomy bass from these powered speakers. As with the original A5, the low end from the A5+ is real bass, very near to the originally-recorded music. From rap to classical to movies, you'll get tight, punchy bass with an awesome growl that will make you smile - regardless of the volume level. Hear the Difference The Audioengine 5+ Premium Powered Speaker System delivers the audio performance and aesthetic quality expected from Audioengine and continues to close the gap between your computer music and home hi-fi. Even if you're not an audio enthusiast we guarantee your music will sound better!